236-02-2

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Based on the simple counterion exchange of ionic liquids, a rapid, facile, and efficient strategy to create a cross-reactive sensor array with a dynamic tunable feature was developed, and exemplified by the construction of a sensor array for the identification and classification of nitroaromatics and explosives mimics. To achieve a good sensing system with fast response, good sensitivity, and low detection limit, the synthesized ionic liquid receptors were tethered onto a silica matrix with a macro-mesoporous hierarchical structure. Through the facile anion exchange approach, abundant ionic-liquid-based individual receptors with diversiform properties, such as different micro-environments, diverse molecular interactions, and distinctive physico-chemical properties, were easily and quickly synthesized to generate a distinct fingerprint of explosives for pattern recognition. The reversible anion exchange ability further endowed the sensor array with a dynamic tunable feature as well as good controllability and practicality for real-world application. With the assistance of statistical analysis, such as principal component analysis (PCA) and linear discrimination analysis (LDA), an optimized-size array with a good resolution was rationally established from a large number of IL-based receptors. The performed experiments suggested that the ionic-liquid-based sensing protocol is a general and powerful strategy for creating a cross-reactive sensor array that could find a wide range of applications for sensing various analytes or complex mixtures. Chemical track hound: A cross-reactive sensor array based on an ionic liquid (IL) was developed for nitroaromatics and explosives mimics. Based on the simple counterion exchange, abundant IL-based individual receptors with diverse properties are easily and quickly synthesized. The reversible anion exchange ability further endowed the sensor array with a dynamic tunable feature as well as good controllability and practicality for real-world applications (see figure). Copyright

Phenanthro- and pyreno-annulated N-heterocyclic carbenes (NHCs) have been incorporated into lutidine-linked bis-NHC Pd pincer complexes to investigate the effect of these polyannulated NHCs on the ability of the complexes to electrochemically reduce COsu

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The effect of perfluorination on photophysical properties was investigated through synthesis and photophysical characterization of two isostructural donor-acceptor-donor dye molecules. The synthesis of two versatile fluorinated benzene compounds, 1,4-difl

Described herin are molecules for use in organic light emitting diodes. Example molecules comprise at least one acceptor moiety A, at least one donor moiety D, and optionally one or more bridge moieties B. Each moiety A is covalently attached to either the moiety B or the moeity D, each moiety D is covalently attached to either the moeity B or the moeity A, and each B is covalently attached to at least one moiety A and at least one moiety D. Values and preferred values of moieties A, D and B are defined herein.

Some 2-substituted-1H-phenantro [9, 10-d] imidazole compounds were synthesized and their analgesic activities were determined on the Swiss albino mice (25-35 g) of either sex. In the synthesis, phenantrenequinone molecule was reacted with different aldehyde derivatives in acetic acid presence of ammonium acetate and finally 16 compounds were gained. All spectral and elemental analyses of the originale compounds were completed and their structures were elucidated. Analgesic activity of the compounds were examined by using the Tail-Clip method. 2-Phenyl-1H-phenantro [9, 10-d] imidazole (comp.1) and 2(4-chlorophenyl)-1H-phenantro [9, 10-d] imidazole (comp. 6) were found to be more active than the others and their LD50 values were found to be greater than 100 mg/kg (i.p).

Photoreaction of benzenecarbothioamide with various aldehydes in benzene solution gave 2-substituted phenanthroimidazoles.

4,5-Diarylimidazoles (1) undergo singlet oxygenation and cleavage to give N,N'-diaroylureas (2) on irradiation in alcoholic solutions in the presence of methylene blue as sensitizer. 5-Methoxy-4,5-diphenylimidazolin-2-one (5) and 4,5-dimethoxy-4,5-diphenylimidazolidin-2-one (6) have been reported as the principal products in the dye-sensitized irradiation of 4,5-diphenylimidazole in methanol.The formation of diaroylureas appears to proceed through the intermediacy of the corresponding imidazolin-2-one.A mechanistic pathway for the photochemical dye-sensitized oxygenation of the imidazoles is suggested.The photochemical cyclodehydrogenation reaction of the stilbene system present in 4,5-diarylimidazoles has also been carried out.

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Certain 2-substituted-1H-phenanthro[9,10-d]-imidazoles such as 2-[(1,1,2,2-tetrafluoroethyl)-sulfonyl]-1H-phenanthro[9,10-d]imidazole, are useful as antiinflammatory agents.